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 A High Efficiency Power Amplifier Integrated with a CPW Patch Antenna. A First Design Iteration
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A High Efficiency Power Amplifier Integrated with a CPW Patch Antenna. A First Design Iteration

автор Jean-Paul L. P. издательство Книга по Требованию Организация здравоохранения
Cтраниц 124        мягкая обложка       
Аннотация:The design of a high-efficiency power amplifier using an active multi-harmonic load-pull system is described. The system is used to find the efficiency-optimizing output loads of a commercial transistor operating at a class B bias point. The load-pull system is constructed using six-port circuits and can independently vary the output load of a transistor at its fundamental operating frequency, as well as at the second and third harmonics. In this work, the CPW-fed aperture-coupled patch antenna is studied for the purpose of integration with a high efficiency power amplifier. A power amplifier with a gain of 7. 1 dB and a PAE of 58. 6% operating at a fundamental frequency of 3. 5 GHz with an input power of 4mW is obtained. A CPW circuit comprising of internally patterned series stubs is added to the input of the antenna in order to produce the transistor' s optimal loads at the second- and third-harmonic frequencies. A CPW-fed slot-coupled patch antenna is designed to act as both a radiating element and an impedance element, producing the transistor’s experimentally determined efficiency-optimizing load at the fundamental frequency.
Автор: Jean-Paul L. P.
Издательство: Книга по Требованию
Год:2009
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2402 руб
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Поиск: A High Efficiency Power Amplifier Integrated with a CPW Patch Antenna. A First Design Iteration
НОВЫЙ ГОД СИМВОЛ 2013 ГОДАУКРАШЕНИЯ
КАРНАВАЛ НА НОВЫЙ ГОД РАСПРОДАЖА
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